Description

The Model 232-Insider single-phase PumpSaver® fits inside ¹/3, 1/2,

3/4, and 1hp, 230 V Grundfos* control boxes manufactured prior to

mid 2014. The PumpSaver® Model 232-Insider is a current monitor

designed to protect single-phase pumps from dry-well, deadhead,

jammed impeller, overvoltage and undervoltage conditions.

Typical applications include residential water wells, commercial

water wells, irrigation wells, and golf course systems.

A calibration adjustment allows the 232-Insider to be calibrated

to your specific pumping application, thereby reducing the

possibility of false or nuisance tripping. A unique microcontrollerbased

voltage and current-sensing circuit constantly monitors

the incoming power for fluctuations, overcurrent, and

undercurrent. When an abnormality, such as loss of suction

is detected, the 232-Insider deactivates its output relay and

directly disconnects the pump motor. The 232-Insider then

begins its user-selectable restart delay (dry-well recovery)

timer. When the timer counts to zero or power is removed and

reapplied, the 232-Insider reactivates its output relay and turns

the pump back on. By leaving the restart delay knob in the reset

position, the 232-Insider will operate in manual reset mode. An

infrared LED communicates directly with a hand-held diagnostic

tool called the Informer (sold separately).

Note: The use of flow restrictors or unusually high head pressures at the time of calibration may

interfere with the detection of dead-head conditions. Contact Littelfuse for information on a

product to fit these applications.

FEATURES BENEFITS

Proprietary

microcontroller

based circuitry

Constant monitoring of voltage and current protects

pumps from dry-well, dead-head, jammed impeller,

and voltage faults

Adjustable restart delay Allows user to select well recovery time delay after a

dry-well condition occurs, or to select manual reset

Built in IR

communications link

Used with the Informer, allows user to see stored

faults, run time, and also troubleshoot the pump while

it’s running

LED indication Provides status and diagnostics for troubleshooting